Pressure/pressure sensor common faults and solution approaches
Pressure/pressure sensor in use, there will be some common faults, which can generally be viewed and to solve their problems, these problems and solutions, for your reference: A, table-type pressure transmitter and the control deviation.
Deviation of the pressure transmitter is a normal phenomenon, and confirm the deviation from the normal range. Second, the pressure transmitter output does not change, and sudden changes in pressure transmitter outputs, pressure transmitters zero cannot go back. This situation is most likely pressure sensor sealing ring problem. Common seals specifications are the causes, after tightening the sensor sealing ring is compressed onto the sensor pressure sensor inside the jam, when pressurizing the pressure medium can't get, but when the pressure suddenly burst the seals, pressure sensors under pressure for a change. Exclude this failure is the best way to remove the sensor, direct look at zero is normal, if zero-replaceable seals properly and try again. Third, differential pressure transmitter installation position effect on zero output.
Micro-differential pressure transmitter measuring range due to its very small, transmitter sensor will affect the output of micro-differential pressure transmitters. When installing the transmitter should be pressure-sensitive axis in the direction perpendicular to gravity, zero is fixed, then adjust the transmitter to the standard values. Four, pressure, transmitter is lost or not. In such cases, you should check the pressure connection is leaking or blocked, if not, check the wiring and check the power, as if the simple pressure output power good changes, or see sensor zero is any output, without changing the sensor is damaged, meter may be damaged or other section of the system's problems. Five, pressure transmitter output signal instability.
This failure may be the stress problem. Pressure source itself is an unstable pressure, is likely to be strong anti-interference ability, instrument or pressure sensor the sensor itself a bad vibration and sensor failure. Source: http://www.zhaohuisensor.com/
